第八届青年地学论坛

Abstract: As urbanization and industrialization have advanced in leaps and bounds, the territorial spatial pattern of Qinghai has experienced profound transformation and reconstruction, which has been directly reflflected in land-use changes and affected the eco-environment. In this context, we constructed a functional classifification system of “production-living-ecological” (PLE), used remote sensing data for six periods from 1980 to 2020, and employed the land transfer matrix, eco-environmental quality index, ecological contribution rate of land-use transformation and geographical detectors to analyze the changes in the territorial spatial patterns, eco-environmental effects and driving forces of eco-environmental quality. The results revealed that (1) the spatial distribution of the province was characterized by the relative agglomeration of theproduction and living spaces and the absolute dominance of ecological spaces; (2) The eco-environmental quality of the region portrayed a steady improvement, with a signifificant reduction in the medium–low and low-quality areas; and (3) the annual average precipitation, proportion of non-agricultural area, and socio-economic factors had

a signifificant impact on the eco-environmental quality of the region, meanwhile, national economy and ecological policies are important indirect driving forces of eco-nvironmental quality. Our fifindings will provide guidelines for territorial spatial management and serve as a reference for eco-environmental protection in Qinghai.
摘要:随着城市化和工业化的突飞猛进，青海国土空间格局发生了深刻的转变和重构，这直接反映在土地利用变化上，同时影响着地区生态环境。在此背景下，文章构建了“生产-生活-生态”功能分类体系(PLE)，利用1980-2020年6个时期的遥感数据，并采用土地转移矩阵，生态利用环境质量指数、土地利用转型生态贡献率和地理探测器，分析青海省国土空间格局变化、生态环境效应和生态环境质量驱动力。结果表明:(1)全省生产生活空间相对集聚，生态空间占绝对优势;②全区生态环境质量持续改善，中低质区明显下降;③年平均降水量、非农业面积占比和社会经济因素对生态环境质量有显著影响，国家经济和生态政策是影响生态环境质量的重要间接驱动力。研究结果将为青海省国土空间管理提供指导，为生态环境保护提供参考。